Home / 198,817.11-274,469.27-153,393.03

Finding the Fourth Proportional to 198,817.11, 274,469.27 and 153,393.03

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Solution

The fourth proportional to 198,817.11, 274,469.27 and 153,393.03 is: 211,760.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,817.11 : 274,469.27 = 153,393.03 : x
  2. Step 2: Convert to fraction form
    198,817.11/274,469.27 = 153,393.03/x
  3. Step 3: Cross multiply
    198,817.11x = 274,469.27 × 153,393.03
  4. Step 4: Simplify right side
    198,817.11x = 42,101,672,200.22
  5. Step 5: Solve for x
    x = 42,101,672,200.22/198,817.11
  6. Step 6: Final answer
    x = 211,760.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.